作业帮switch(e) { case '@':g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--;break; case ':g[k-2]=pow(g[k-2],g[k-1]);k--;break; case '+':g[k-2]+=g[k-1];k--;break; case '-':g[k-2]=g[k-2]-g[k-1];k--;break; case '*':g[k-2]*=g[k-1];k--;break; case '/':g[k-2]=g[k-2]/g[k-1]
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/12 13:16:51
![switch(e) { case '@':g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--;break; case ':g[k-2]=pow(g[k-2],g[k-1]);k--;break; case '+':g[k-2]+=g[k-1];k--;break; case '-':g[k-2]=g[k-2]-g[k-1];k--;break; case '*':g[k-2]*=g[k-1];k--;break; case '/':g[k-2]=g[k-2]/g[k-1]](/uploads/image/z/8190420-60-0.jpg?t=switch%28e%29+%7B+case+%27%40%27%3Ag%5Bk-2%5D%3Dpow%28g%5Bk-1%5D%2Cpow%28g%5Bk-2%5D%2C-1%29%29%3Bk--%3Bbreak%3B+case+%27%3Ag%5Bk-2%5D%3Dpow%28g%5Bk-2%5D%2Cg%5Bk-1%5D%29%3Bk--%3Bbreak%3B+case+%27%2B%27%3Ag%5Bk-2%5D%2B%3Dg%5Bk-1%5D%3Bk--%3Bbreak%3B+case+%27-%27%3Ag%5Bk-2%5D%3Dg%5Bk-2%5D-g%5Bk-1%5D%3Bk--%3Bbreak%3B+case+%27%2A%27%3Ag%5Bk-2%5D%2A%3Dg%5Bk-1%5D%3Bk--%3Bbreak%3B+case+%27%2F%27%3Ag%5Bk-2%5D%3Dg%5Bk-2%5D%2Fg%5Bk-1%5D)
switch(e) { case '@':g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--;break; case ':g[k-2]=pow(g[k-2],g[k-1]);k--;break; case '+':g[k-2]+=g[k-1];k--;break; case '-':g[k-2]=g[k-2]-g[k-1];k--;break; case '*':g[k-2]*=g[k-1];k--;break; case '/':g[k-2]=g[k-2]/g[k-1]
switch(e) { case '@':g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--;break; case ':g[k-2]=pow(g[k-2],g[k-1]);k--;break; case '+':g[k-2]+=g[k-1];k--;break; case '-':g[k-2]=g[k-2]-g[k-1];k--;break; case '*':g[k-2]*=g[k-1];k--;break; case '/':g[k-2]=g[k-2]/g[k-1];k--;break; default:continue;
switch(e) { case '@':g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--;break; case ':g[k-2]=pow(g[k-2],g[k-1]);k--;break; case '+':g[k-2]+=g[k-1];k--;break; case '-':g[k-2]=g[k-2]-g[k-1];k--;break; case '*':g[k-2]*=g[k-1];k--;break; case '/':g[k-2]=g[k-2]/g[k-1]
也就是e里面取的是什么字符就运行那字符后面的运算方法 当e=@的时候运行g[k-2]=pow(g[k-1],pow(g[k-2],-1));k--; 下面的一样